摘要
介绍了数字电视交通导航系统的用户需求,分析了系统实现的关键技术,给出了系统的硬件组成与网络结构;系统的软件结构分为数据处理层、业务引擎、业务应用层3层。该系统不需要对电视终端和有线电视网络做任何改造,易于实现。
User demands of traffic navigation system based on DTV network are introduced. The key technologies of system implementation are analyzed. The hardware components and network structure are given. The system software can be divided into three layers： the data processing layer, the business engine layer and the business application layer. The system can be implemented easily without any changes on TV terminal and cable TV network.
出处
《电视技术》
北大核心
2011年第6期59-61,共3页
Video Engineering
关键词
数字电视
导航
流媒体
交通信息
digital television
navigation
streaming media
traffic information
